Art Nouveau is a style of art, architecture and applied art—especially the decorative arts—that were most popular during 1890–1910. The name "Art Nouveau" is French for "new art". A reaction to academic art of the 19th century, it was inspired by natural forms and structures, not only in flowers and plants, but also in curved lines. Architects tried to harmonize with the natural environment. It is also considered a philosophy of design of furniture, which was designed according to the whole building and made part of ordinary life.

The Kiss (original Der Kuss) was painted by Gustav Klimt, and is probably his most famous work. He began work on it in 1907 and it is the highpoint of his so-called 'Golden Period', when he painted a number of works in a similar style. It depicts a couple embracing, their bodies largely hidden by elaborate robes decorated in a style that bears little relation to any historical textile designs. As well as conventional oil paint, gold leaf has been used, one of the aspects of the work that gives it a strikingly modern appearance, while evoking memories of much earlier art. The painting is now in the Österreichische Galerie Belvedere museum, in the Belvedere palace, in Vienna, Austria.
When he painted The Kiss Klimt was 45 and still lived at home with his mother and two unmarried sisters - but behind the respectable facade he was a man with a ferocious sexual appetite. Klimt fathered at least three illegitimate children and probably many more. He was obsessed by women and he had a fixation with redheads. It is no surprise that the woman in The Kiss has red hair. According to writer Frank Whitford: "Together the man and the woman form the shape of a penis and I think that is intentional - it's about sex and about the fulfillment of sex between a man and a woman."

This painting is a typical representation of Klimt’s stylized eroticism, and portrays the subject of Danae, which has been a popular theme throughout painting, having been painted before by Corregio, Rembrandt, and Titian. Danae was the symbol of divine love, transcendence, and sensational beauty. By positioning the model with a raised leg, this painting pays tribute to the Titian series of paintings by the same name. As the story goes, while Danae was imprisoned by her father, she was visited by Zeus, in the form of the golden rain flowing between her legs. Soon after Zeus’ visit, Danae became pregnant and gave birth to her son Perseus.

This painting, which took three years to complete, was commissioned by the wealthy industrialist Ferdinand Bloch-Bauer, who made his money in the sugar industry. Ferdinand Bloch-Bauer favored the arts, especially Klimt, and commissioned him to complete another portrait of his wife Adele in 1912. Adele Bloch-Bauer was the only person to be painted twice by Klimt. This painting is perhaps most famous not for its artistic quality, but because of its scandalous history since inception. Upon her death, Adele Bloch-Bauer wished the painting to be given to the Austrian State Gallery, but it was seized by advancing German forces in World War II. In 1945, Ferdinand Bloch-Bauer designated the paintings to be the property of his nephew and nieces, including Maria Altmann. Nonetheless, the Austrian government retained ownership of the painting, and was not returned to the Altmann family until 2006 after a long court battle. The painting was then sold at auction for $135 dollars, which is said to be the highest price paid at auction for a painting. It is now displayed the Neue Art Gallery in New York.